Finding the Third Proportional to 3,267,915 and 7,180,878

Step by Step Solution

1. Step 1: Write the proportion equation
   3,267,915 : 7,180,878 = 7,180,878 : x
2. Step 2: Convert to fraction form
   3,267,915/7,180,878 = 7,180,878/x
3. Step 3: Cross multiply
   3,267,915x = 7,180,878 × 7,180,878
4. Step 4: Simplify right side
   3,267,915x = 51,565,008,850,884
5. Step 5: Solve for x
   x = 51,565,008,850,884/3,267,915
6. Step 6: Final answer
   x = 15,779,176.89